MANUFACTURE OF STRIPE LAMINATE STEEL SHEET FOR WELDED CAN

Title:

MANUFACTURE OF STRIPE LAMINATE STEEL SHEET FOR WELDED CAN

Document Type and Number:

Japanese Patent JP3032930

Kind Code:

B2

Abstract:

PURPOSE: To provide a method for manufacture of a stripe laminate steel sheet for a welded can wherein a laminate-not requiring part can be formed without scraping off a resin layer.
CONSTITUTION: A thermoplastic resin layer is formed by laminating a polyethylene resin layer, a polypropylene resin layer, or a polyethylene terephthalate resin layer by a T-die extrusion method on total width of at least one side surface of a preheated surface treated steel sheet. The resin layer is removed by abrasion by irradiating a laminate-not wanted part with an ultraviolet laser beam of 193nm wavelength for the polyethylene resin layer and the polypropylene resin layer, and with that of 248nm wavelength far the polyethylene terephthalate resin layer.

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Inventors:

Kojiro Takano
Ryoichi Yoshihara

Application Number:

JP31928693A

Publication Date:

April 17, 2000

Filing Date:

November 26, 1993

Export Citation:

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Assignee:

Nippon Steel Corporation

International Classes:

B32B15/09; B29C47/02; B29C48/305; B32B15/08; B32B37/00; B29K23/00; B29K67/00; B29K105/22; B29L9/00; (IPC1-7): B32B15/08; B29C47/02; B29C47/14; B32B31/18; B32B31/28

Domestic Patent References:

JP2219651A
JP5131607A

Attorney, Agent or Firm:

Masamitsu Akizawa (1 person outside)

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